Key points

Some boxers say their passports were taken away and they were used like slaves

The AFP reportedly raided Mr Bohol's boxing stable in 2010

But the ABC can find no evidence of any charges being laid against Mr Bohol or his stable

Some of the boxers told the ABC's 7.30 program the manager recruited them with the promise of riches and success in and out of the ring.

The reality when they arrived in Sydney was vastly different; they had their passports taken away and they were used as unpaid houseboys.

After almost three years in silence, several Filipino boxers have decided to speak publicly about their exploitation.

Back in the Philippines, when he was an up-and-coming star of the international lightweight boxing circuit, Czar Amonsot caught the eye of Filipino-Australian Dido Bohol, who was looking to bring fighters to Sydney.

"He says that if I came here, I can make money, but when I don't have any fight, I can get job or something, just to make money with, send money to my family in the Philippines," he said.

Meanwhile, another young Filipino boxer, Alann Jay Tuniacao, was also recruited to Australia to fight for Mr Bohol.

"My first impression of Dido is that he is the big time. It's because you can look at his face, big necklace and everything," he said.

In June 2010 both boxers flew to Sydney and entered Australia on temporary sports visas.

But when they arrived at their manager's house in Green Valley, western Sydney, things began to go wrong.

First the boxers say Mr Bohol took away their passports, then they learnt they now had a debt to pay off to Mr Bohol and they were to stay on his property.

'They just gave us bones'

They say they were forced to live in the garage with three other people.

"It was like we were in prison. We were not allowed to know other Filipinos or talk to them," Mr Tuniacao said.

The men say they were told to sleep in three bunk beds stacked inside the garage - an uninsulated box made of corrugated iron, sitting on a concrete slab.

Mr Tuniacao says it was winter in Sydney and at night it was freezing.

"When I came here, it made me very, very sick. Early in the morning when I get up, I always get nose bleeds because it's too cold," he said.

They say they would often go hungry, eating mainly chicken bones and rice or other leftovers from the main house.

"When they cook they took out the good parts. They just gave us the bones and we just put the sauce in the rice and that's what we would eat," Mr Tuniacao said.